Philadelphia: The Pennyslvania Railroad Company, 1905. First edition. Hardcover. Fine. Original 3/4 black pebble grained leather on boards, with black pebble grained cloth insets and patterned endpapers. An exceptionally clean, bright and solid copy of this magnificent volume. Some minor scuffing to the corners and spine ends but all of this is very superficial. The book remains very strong and straight and the contents are as fine as one could ever hope. Dozens of large fold-out schematic drawings. A fine volume in all respects.